Since her husband is cheating on her with her own sister, Rosnia, who initially intends to kill her husband, accidentally kills her own sister. For that, she is sentenced to eight years jail while pregnant. She is treated by Dr. Herman, who yearns for children but his wife, Dea, is too busy with her career. Herman grows closer to Rosnia, as she is severely depressed after the delivery. Herman manages to revive Rosnia’s life spirit, and he even becomes famous for his writing entitled "Di Balik Dinding Kelabu" (Behind Grey Walls), which is published in a popular women's magazine. Meanwhile, Dea achieves her goal of becoming a famous designer. Then Herman chooses Rosnia, however, at the last moment, Dea realises her mistake. She catches up with Herman who brings Rosnia home, and promises to be a good wife. Rosnia holds her child and walks away, leaving Herman and Dea.